K-40 Surf Forecast

/ Baja Norte (67 surf breaks) /

Mexico (244 surf breaks)

Surf Forecasts:

K-40 surfForecast / Baja Norte / Mexico

48hr Weather and Surf, issued 10 pm Monday 15 Sep 2025 PDT

Forecast update in hr min s Forecast update imminent

K-40 surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's K-40 sea temperature is 19.0° C
(Which is 1.2°C colder than average for this time of year)

How big are the waves at K-40 today?

The current surf forecast for K-40 at 5AM is: 0.8m 18s primary swell from a South-southwest direction and 0.5m 13s secondary swell from a South-southwest direction (forecast issued at 10:00pm September 15). The wind direction is predicted to be cross-onshore.

Time (PDT) & Date	Wave Height	Wave Period
Morning (16 Sep)	3ft (0.9m)	17s
Afternoon (16 Sep)	3.5ft (1.0m)	16s
Evening (16 Sep)	2.5ft (0.8m)	16s

Table - waves today at K-40. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Mon 15		Tuesday 16								Wednesday 17								Thursday 18
	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM
Rating (10 max)	2	3	2	2	2	1	1	1	1	2	2	2	2	0	0	2	2	2	2	1	2	2	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW
Period(s) (?)	19	18	18	18	18	17	16	16	16	16	16	16	15	15	15	15	15	15	14	14	14	14	14	13
Wave Graph (?)
Energy (?)	534	562	629	626	603	587	695	591	494	570	538	543	484	412	408	409	452	443	427	390	388	352	351	334
Wind (km/h)	NW	NW	NNW	NW	NNW	WNW	WNW	WNW	NW	WNW	NNW	W	NNE	NNW	N	NNE	NE	NNW	SE	S	SSE	SSE	S	SSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	glass	cross- on	cross- on	cross- on	on	on	cross- on	cross- on	cross- on	cross	on	glass	cross	cross	cross- off	cross- off	glass	cross- off	cross	cross- off	cross- off	cross	cross
High Tide / height (m)					7:31AM 1.53				5:55PM 1.97				7:57AM 1.63				6:52PM 2.04					8:22AM 1.72
Low Tide / height (m)			12:27AM 0.31				11:59AM 1.20				1:14AM 0.24				12:56PM 1.04				1:51AM 0.21				1:40PM 0.89

	Mon 15		Tuesday 16								Wednesday 17								Thursday 18
Sunrise	-	-	-	-	6:31	-	-	-	-	-	-	-	6:31	-	-	-	-	-	-	-	6:33	-	-	-
Sunset	-	-	-	-	-	-	-	6:52	-	-	-	-	-	-	-	6:51	-	-	-	-	-	-	-	6:50

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	1	-	1	4	2	1	1	1	-	-	-	-
Temp. °C	24	24	24	24	25	28	26	25	24	23	23	22	21	24	23	20	23	24	24	22	22	22	24	23
Feels °C (?)	26	26	25	25	26	28	26	25	25	24	24	23	23	22	21	20	24	27	26	24	24	23	25	24

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Baja Norte

Wind Update Continuing clean conditions at K-40 (calm at San Diego/Brown Field Municipal Airport 39 km from K-40). 0.6m 18s long period groundswell from the SSW with a 0.5m 13s groundswell, also from the SSW and a 0.4m 12s groundswell, also from the WNW. 3 swells combining to make bigger set waves.
1 hour 59 minutes ago K-40

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39 km away, 1 h 59 min ago

0 km/h

0.0

19.0

Air / Water (°C)

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